From: russell@... Date: 2017-04-30T18:41:25+00:00 Subject: [ruby-core:80942] [Ruby trunk Bug#13528] Calling #denominator on a whole number floating point literal causes segfault with mathn loaded. Issue #13528 has been reported by burningpony (Russell Osborne). ---------------------------------------- Bug #13528: Calling #denominator on a whole number floating point literal causes segfault with mathn loaded. https://bugs.ruby-lang.org/issues/13528 * Author: burningpony (Russell Osborne) * Status: Open * Priority: Normal * Assignee: * Target version: * ruby -v: ruby 2.4.1p111 * Backport: 2.2: UNKNOWN, 2.3: UNKNOWN, 2.4: UNKNOWN ---------------------------------------- Code to reproduce. ~~~ ruby require "mathn" (2.0).denominator ~~~ Repeatable in isolated docker container ~~~ docker run -it ruby:slim ruby -e 'require "mathn"; p (2.0).denominator;' ~~~ Stacktrace follows ~~~ -e:1: [BUG] Segmentation fault at 0x0000000000001d ruby 2.4.1p111 (2017-03-22 revision 58053) [x86_64-linux] -- Control frame information ----------------------------------------------- c:0003 p:---- s:0011 e:000010 CFUNC :denominator c:0002 p:0015 s:0007 e:000005 EVAL -e:1 [FINISH] c:0001 p:0000 s:0003 E:002030 (none) [FINISH] -- Ruby level backtrace information ---------------------------------------- -e:1:in `
' -e:1:in `denominator' -- Machine register context ------------------------------------------------ RIP: 0x00007f9ec9fff185 RBP: 0x0000000000000003 RSP: 0x00007ffcb7f09f30 RAX: 0x0000000000000005 RBX: 0x0000000000000002 RCX: 0x00007f9eca5c9f50 RDX: 0x0000000000000001 RDI: 0x0010000000000001 RSI: 0x0000000000000000 R8: 0x00007f9eca0fcad0 R9: 0x0000000000000002 R10: 0x0000000000000001 R11: 0x0000000000000001 R12: 0x000000000218fce0 R13: 0x00000000020b0c00 R14: 0x00000000023e7cf0 R15: 0x0000000000000002 EFL: 0x0000000000010202 -- C level backtrace information ------------------------------------------- /usr/local/lib/libruby.so.2.4(rb_vm_bugreport+0x4f3) [0x7f9eca0c2683] vm_dump.c:684 /usr/local/lib/libruby.so.2.4(rb_bug_context+0xd4) [0x7f9ec9f413a4] error.c:506 /usr/local/lib/libruby.so.2.4(sigsegv+0x3e) [0x7f9eca03605e] signal.c:907 /lib/x86_64-linux-gnu/libpthread.so.0 [0x7f9ec9c8d890] /usr/local/lib/libruby.so.2.4(float_denominator+0x55) [0x7f9ec9fff185] rational.c:2045 /usr/local/lib/libruby.so.2.4(vm_call_cfunc+0xef) [0x7f9eca0a4f3f] vm_insnhelper.c:1752 /usr/local/lib/libruby.so.2.4(vm_call_method+0xe3) [0x7f9eca0b6b13] vm_insnhelper.c:2292 /usr/local/lib/libruby.so.2.4(vm_exec_core+0x1610) [0x7f9eca0ae3d0] insns.def:1066 /usr/local/lib/libruby.so.2.4(vm_exec+0x8b) [0x7f9eca0b342b] vm.c:1727 /usr/local/lib/libruby.so.2.4(ruby_exec_internal+0xb2) [0x7f9ec9f47132] eval.c:244 /usr/local/lib/libruby.so.2.4(ruby_exec_node+0x1d) [0x7f9ec9f48ead] eval.c:308 /usr/local/lib/libruby.so.2.4(ruby_run_node+0x1e) [0x7f9ec9f4ba6e] eval.c:300 /usr/local/bin/ruby(main+0x4b) [0x40087b] main.c:36 -- Other runtime information ----------------------------------------------- * Loaded script: -e * Loaded features: 0 enumerator.so 1 thread.rb 2 rational.so 3 complex.so 4 /usr/local/lib/ruby/2.4.0/x86_64-linux/enc/encdb.so 5 /usr/local/lib/ruby/2.4.0/x86_64-linux/enc/trans/transdb.so 6 /usr/local/lib/ruby/2.4.0/unicode_normalize.rb 7 /usr/local/lib/ruby/2.4.0/x86_64-linux/rbconfig.rb 8 /usr/local/lib/ruby/2.4.0/rubygems/compatibility.rb 9 /usr/local/lib/ruby/2.4.0/rubygems/defaults.rb 10 /usr/local/lib/ruby/2.4.0/rubygems/deprecate.rb 11 /usr/local/lib/ruby/2.4.0/rubygems/errors.rb 12 /usr/local/lib/ruby/2.4.0/rubygems/version.rb 13 /usr/local/lib/ruby/2.4.0/rubygems/requirement.rb 14 /usr/local/lib/ruby/2.4.0/rubygems/platform.rb 15 /usr/local/lib/ruby/2.4.0/rubygems/basic_specification.rb 16 /usr/local/lib/ruby/2.4.0/rubygems/stub_specification.rb 17 /usr/local/lib/ruby/2.4.0/rubygems/util/list.rb 18 /usr/local/lib/ruby/2.4.0/x86_64-linux/stringio.so 19 /usr/local/lib/ruby/2.4.0/rubygems/specification.rb 20 /usr/local/lib/ruby/2.4.0/rubygems/exceptions.rb 21 /usr/local/lib/ruby/2.4.0/rubygems/dependency.rb 22 /usr/local/lib/ruby/2.4.0/rubygems/core_ext/kernel_gem.rb 23 /usr/local/lib/ruby/2.4.0/monitor.rb 24 /usr/local/lib/ruby/2.4.0/rubygems/core_ext/kernel_require.rb 25 /usr/local/lib/ruby/2.4.0/rubygems.rb 26 /usr/local/lib/ruby/2.4.0/rubygems/path_support.rb 27 /usr/local/lib/ruby/gems/2.4.0/gems/did_you_mean-1.1.0/lib/did_you_mean/version.rb 28 /usr/local/lib/ruby/gems/2.4.0/gems/did_you_mean-1.1.0/lib/did_you_mean/core_ext/name_error.rb 29 /usr/local/lib/ruby/gems/2.4.0/gems/did_you_mean-1.1.0/lib/did_you_mean/levenshtein.rb 30 /usr/local/lib/ruby/gems/2.4.0/gems/did_you_mean-1.1.0/lib/did_you_mean/jaro_winkler.rb 31 /usr/local/lib/ruby/gems/2.4.0/gems/did_you_mean-1.1.0/lib/did_you_mean/spell_checker.rb 32 /usr/local/lib/ruby/2.4.0/delegate.rb 33 /usr/local/lib/ruby/gems/2.4.0/gems/did_you_mean-1.1.0/lib/did_you_mean/spell_checkers/name_error_checkers/class_name_checker.rb 34 /usr/local/lib/ruby/gems/2.4.0/gems/did_you_mean-1.1.0/lib/did_you_mean/spell_checkers/name_error_checkers/variable_name_checker.rb 35 /usr/local/lib/ruby/gems/2.4.0/gems/did_you_mean-1.1.0/lib/did_you_mean/spell_checkers/name_error_checkers.rb 36 /usr/local/lib/ruby/gems/2.4.0/gems/did_you_mean-1.1.0/lib/did_you_mean/spell_checkers/method_name_checker.rb 37 /usr/local/lib/ruby/gems/2.4.0/gems/did_you_mean-1.1.0/lib/did_you_mean/spell_checkers/null_checker.rb 38 /usr/local/lib/ruby/gems/2.4.0/gems/did_you_mean-1.1.0/lib/did_you_mean/formatter.rb 39 /usr/local/lib/ruby/gems/2.4.0/gems/did_you_mean-1.1.0/lib/did_you_mean.rb 40 /usr/local/lib/ruby/2.4.0/cmath.rb 41 /usr/local/lib/ruby/2.4.0/e2mmap.rb 42 /usr/local/lib/ruby/2.4.0/matrix.rb 43 /usr/local/lib/ruby/2.4.0/singleton.rb 44 /usr/local/lib/ruby/2.4.0/forwardable/impl.rb 45 /usr/local/lib/ruby/2.4.0/forwardable.rb 46 /usr/local/lib/ruby/2.4.0/prime.rb 47 /usr/local/lib/ruby/2.4.0/x86_64-linux/mathn/rational.so 48 /usr/local/lib/ruby/2.4.0/x86_64-linux/mathn/complex.so 49 /usr/local/lib/ruby/2.4.0/mathn.rb * Process memory map: 00400000-00401000 r-xp 00000000 08:01 1975189 /usr/local/bin/ruby 00600000-00601000 rw-p 00000000 08:01 1975189 /usr/local/bin/ruby 02085000-0245e000 rw-p 00000000 00:00 0 [heap] 7f9ec74ce000-7f9ec7677000 r--s 00000000 08:01 543243 /lib/x86_64-linux-gnu/libc-2.19.so 7f9ec7677000-7f9ec8572000 r--s 00000000 08:01 1975226 /usr/local/lib/libruby.so.2.4.1 7f9ec8572000-7f9ec8588000 r-xp 00000000 08:01 543262 /lib/x86_64-linux-gnu/libgcc_s.so.1 7f9ec8588000-7f9ec8787000 ---p 00016000 08:01 543262 /lib/x86_64-linux-gnu/libgcc_s.so.1 7f9ec8787000-7f9ec8788000 rw-p 00015000 08:01 543262 /lib/x86_64-linux-gnu/libgcc_s.so.1 7f9ec8788000-7f9ec8789000 r-xp 00000000 08:01 2101319 /usr/local/lib/ruby/2.4.0/x86_64-linux/mathn/complex.so 7f9ec8789000-7f9ec8988000 ---p 00001000 08:01 2101319 /usr/local/lib/ruby/2.4.0/x86_64-linux/mathn/complex.so 7f9ec8988000-7f9ec8989000 rw-p 00000000 08:01 2101319 /usr/local/lib/ruby/2.4.0/x86_64-linux/mathn/complex.so 7f9ec8989000-7f9ec898a000 r-xp 00000000 08:01 2101320 /usr/local/lib/ruby/2.4.0/x86_64-linux/mathn/rational.so 7f9ec898a000-7f9ec8b89000 ---p 00001000 08:01 2101320 /usr/local/lib/ruby/2.4.0/x86_64-linux/mathn/rational.so 7f9ec8b89000-7f9ec8b8a000 rw-p 00000000 08:01 2101320 /usr/local/lib/ruby/2.4.0/x86_64-linux/mathn/rational.so 7f9ec8b8a000-7f9ec8b92000 r-xp 00000000 08:01 2101336 /usr/local/lib/ruby/2.4.0/x86_64-linux/stringio.so 7f9ec8b92000-7f9ec8d91000 ---p 00008000 08:01 2101336 /usr/local/lib/ruby/2.4.0/x86_64-linux/stringio.so 7f9ec8d91000-7f9ec8d92000 rw-p 00007000 08:01 2101336 /usr/local/lib/ruby/2.4.0/x86_64-linux/stringio.so 7f9ec8d92000-7f9ec8d95000 r-xp 00000000 08:01 2101291 /usr/local/lib/ruby/2.4.0/x86_64-linux/enc/trans/transdb.so 7f9ec8d95000-7f9ec8f94000 ---p 00003000 08:01 2101291 /usr/local/lib/ruby/2.4.0/x86_64-linux/enc/trans/transdb.so 7f9ec8f94000-7f9ec8f95000 rw-p 00002000 08:01 2101291 /usr/local/lib/ruby/2.4.0/x86_64-linux/enc/trans/transdb.so 7f9ec8f95000-7f9ec8f97000 r-xp 00000000 08:01 2101248 /usr/local/lib/ruby/2.4.0/x86_64-linux/enc/encdb.so 7f9ec8f97000-7f9ec9196000 ---p 00002000 08:01 2101248 /usr/local/lib/ruby/2.4.0/x86_64-linux/enc/encdb.so 7f9ec9196000-7f9ec9197000 rw-p 00001000 08:01 2101248 /usr/local/lib/ruby/2.4.0/x86_64-linux/enc/encdb.so 7f9ec9197000-7f9ec9338000 r-xp 00000000 08:01 543243 /lib/x86_64-linux-gnu/libc-2.19.so 7f9ec9338000-7f9ec9538000 ---p 001a1000 08:01 543243 /lib/x86_64-linux-gnu/libc-2.19.so 7f9ec9538000-7f9ec953c000 r--p 001a1000 08:01 543243 /lib/x86_64-linux-gnu/libc-2.19.so 7f9ec953c000-7f9ec953e000 rw-p 001a5000 08:01 543243 /lib/x86_64-linux-gnu/libc-2.19.so 7f9ec953e000-7f9ec9542000 rw-p 00000000 00:00 0 7f9ec9542000-7f9ec9642000 r-xp 00000000 08:01 543273 /lib/x86_64-linux-gnu/libm-2.19.so 7f9ec9642000-7f9ec9841000 ---p 00100000 08:01 543273 /lib/x86_64-linux-gnu/libm-2.19.so 7f9ec9841000-7f9ec9842000 r--p 000ff000 08:01 543273 /lib/x86_64-linux-gnu/libm-2.19.so 7f9ec9842000-7f9ec9843000 rw-p 00100000 08:01 543273 /lib/x86_64-linux-gnu/libm-2.19.so 7f9ec9843000-7f9ec984b000 r-xp 00000000 08:01 543251 /lib/x86_64-linux-gnu/libcrypt-2.19.so 7f9ec984b000-7f9ec9a4a000 ---p 00008000 08:01 543251 /lib/x86_64-linux-gnu/libcrypt-2.19.so 7f9ec9a4a000-7f9ec9a4b000 r--p 00007000 08:01 543251 /lib/x86_64-linux-gnu/libcrypt-2.19.so 7f9ec9a4b000-7f9ec9a4c000 rw-p 00008000 08:01 543251 /lib/x86_64-linux-gnu/libcrypt-2.19.so 7f9ec9a4c000-7f9ec9a7a000 rw-p 00000000 00:00 0 7f9ec9a7a000-7f9ec9a7d000 r-xp 00000000 08:01 543256 /lib/x86_64-linux-gnu/libdl-2.19.so 7f9ec9a7d000-7f9ec9c7c000 ---p 00003000 08:01 543256 /lib/x86_64-linux-gnu/libdl-2.19.so 7f9ec9c7c000-7f9ec9c7d000 r--p 00002000 08:01 543256 /lib/x86_64-linux-gnu/libdl-2.19.so 7f9ec9c7d000-7f9ec9c7e000 rw-p 00003000 08:01 543256 /lib/x86_64-linux-gnu/libdl-2.19.so 7f9ec9c7e000-7f9ec9c96000 r-xp 00000000 08:01 543307 /lib/x86_64-linux-gnu/libpthread-2.19.so 7f9ec9c96000-7f9ec9e95000 ---p 00018000 08:01 543307 /lib/x86_64-linux-gnu/libpthread-2.19.so 7f9ec9e95000-7f9ec9e96000 r--p 00017000 08:01 543307 /lib/x86_64-linux-gnu/libpthread-2.19.so 7f9ec9e96000-7f9ec9e97000 rw-p 00018000 08:01 543307 /lib/x86_64-linux-gnu/libpthread-2.19.so 7f9ec9e97000-7f9ec9e9b000 rw-p 00000000 00:00 0 7f9ec9e9b000-7f9eca19c000 r-xp 00000000 08:01 1975226 /usr/local/lib/libruby.so.2.4.1 7f9eca19c000-7f9eca39b000 ---p 00301000 08:01 1975226 /usr/local/lib/libruby.so.2.4.1 7f9eca39b000-7f9eca3a4000 rw-p 00300000 08:01 1975226 /usr/local/lib/libruby.so.2.4.1 7f9eca3a4000-7f9eca3b5000 rw-p 00000000 00:00 0 7f9eca3b5000-7f9eca3d5000 r-xp 00000000 08:01 543225 /lib/x86_64-linux-gnu/ld-2.19.so 7f9eca44f000-7f9eca471000 r--s 00000000 08:01 543307 /lib/x86_64-linux-gnu/libpthread-2.19.so 7f9eca471000-7f9eca495000 r--s 00000000 08:01 1975189 /usr/local/bin/ruby 7f9eca495000-7f9eca4c6000 rw-p 00000000 00:00 0 7f9eca4c6000-7f9eca4c7000 ---p 00000000 00:00 0 7f9eca4c7000-7f9eca5d0000 rw-p 00000000 00:00 0 7f9eca5d2000-7f9eca5d5000 rw-p 00000000 00:00 0 7f9eca5d5000-7f9eca5d6000 r--p 00020000 08:01 543225 /lib/x86_64-linux-gnu/ld-2.19.so 7f9eca5d6000-7f9eca5d7000 rw-p 00021000 08:01 543225 /lib/x86_64-linux-gnu/ld-2.19.so 7f9eca5d7000-7f9eca5d8000 rw-p 00000000 00:00 0 7ffcb770c000-7ffcb7f0b000 rw-p 00000000 00:00 0 [stack] 7ffcb7f44000-7ffcb7f46000 r--p 00000000 00:00 0 [vvar] 7ffcb7f46000-7ffcb7f48000 r-xp 00000000 00:00 0 [vdso] ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0 [vsyscall] [NOTE] You may have encountered a bug in the Ruby interpreter or extension libraries. Bug reports are welcome. For details: http://www.ruby-lang.org/bugreport.html ~~~ -- https://bugs.ruby-lang.org/ Unsubscribe: